Richard Schiessl's production history:

1988-1992
PSYCHIC TV ALBUMS:
Jack The Tab, The Infinite Beat, Ultra House, Peak Hour, Ultra Drug

1992
Apply Within Change (Bush Records)

1993-1999
SPERM RECORDS (CO-FOUNDER):
All original mixes and remixes on Sperm by Yum Yum (3 Minute Warning, The Vision etc), Boomerang (So Damn Tuff, Can't Get It Wrong etc) Apply Within (Space Grass), Natural Forces with Ian Ossia.
Featured on well over 20 releases.

2001
Jimmy Van M @ Sanctuary Sanctuary (Bedrock)
Yum Yum Heavy Fluid (Bedrock)

2002
Stuart King Beautica & Tica Beau (Spundae Recordings)
Vantage Point feat. Terra Deva Love Like Sleep
Cant Get It Wrong (Subliminal)

REMIXES AS YUM YUM

Tony Di Bart Cleveland City 1994
Pete Lazonby Sacred Cycles Brainiac 1995
Shy Talks Cleveland City 1995
Mark Bell Sweet Sensation Decon 1995
Xavier Going Up
Far Away FXU 1996
Keoki Magic Moonshine 1996
Eat Static Ultimate 1996
Gat Décor Bare Foot Big Life 1996
GTB Entropy Sperm 1997
Capricorn All I am Sperm 1998
Insignia Revelations 3 Beat 2001